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Dayco 87612 HVAC Heater Hose
Overview of Dayco Small I.D. Heater Hose 87612
The Dayco Small I.D. Heater Hose 87612 is designed for reliable HVAC system performance in various vehicle models. Engineered with durable EPDM material, this dual inside diameter hose supports efficient coolant flow in heating applications for Chevrolet, Ford, Mazda, Mercury, Pontiac, Saturn, and Volkswagen vehicles.
- Constructed from high-quality EPDM for heat and chemical resistance
- Dual inside diameters: 5/8 inch and 3/4 inch ends for versatile fitment
- Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
- Black color for standard OEM appearance
- Trunk height of 6 inches for proper routing and installation
Detailed Product Description
The Dayco Small I.D. Heater Hose part number 87612 is a dual I.D. hose designed to accommodate different connection sizes on each end, with a 5/8 inch inside diameter on one end and 3/4 inch on the other. Made from EPDM (ethylene propylene diene monomer) rubber, this hose offers excellent resistance to heat, ozone, and coolant chemicals, ensuring durability and long service life in HVAC heater systems. The hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating and cooling applications. Its black color matches OEM specifications, and the 6-inch trunk height allows for proper fitment and routing within the engine compartment.
The Small I.D. Heater Hose product line by Dayco focuses on providing hoses with smaller inside diameters tailored for specific HVAC heater system requirements. This line ensures compatibility with a range of vehicle models by offering dual I.D. hoses that accommodate varying inlet and outlet sizes, simplifying replacement and maintenance tasks.
Compatible Vehicles and Applications
This heater hose is compatible with multiple makes and models, including Chevrolet Camaro, Malibu, and Aura; Ford Mustang, Escape, and Taurus; Mazda Tribute and 6; Mercury Cougar and Mystique; Pontiac Firebird and G6; Saturn Aura; and Volkswagen Jetta and Rabbit Convertible. The Dayco 87612 hose is designed to maintain proper coolant flow in the heater core circuit, supporting effective cabin heating and HVAC system operation.
- Replaces worn or cracked heater hoses causing coolant leaks
- Solves heater core flow restrictions due to hose collapse or damage
- Prevents overheating issues related to faulty heater hose connections
- Restores proper HVAC heating performance in compatible Chevrolet, Ford, Mazda, Mercury, Pontiac, Saturn, and Volkswagen models
Installation Notes and Tips
- Verify hose diameters and length before installation to ensure proper fit
- Inspect hose clamps and replace if corroded or damaged
- Drain coolant system partially to avoid spills during hose replacement
- Ensure hose routing matches OEM configuration to prevent kinks or interference
- Check for leaks after installation and refill coolant as necessary
Quality Assurance and Warranty
Dayco manufactures the Small I.D. Heater Hose 87612 to meet stringent SAE specifications, ensuring reliable performance in automotive HVAC systems. The EPDM material and construction standards provide resistance to heat, pressure, and chemical exposure typical in engine compartments. While specific warranty details are not provided, Dayco products generally adhere to industry quality standards and are backed by the brand's commitment to durability and fitment accuracy.
| Brand | Dayco |
| Part Number | 87612 |
| Position | Small I.D. Heater Hose, Heater To Tee |
| Color | Black |
| End 1 Inside Diameter | 5/8 |
| End 2 Inside Diameter | 3/4 |
| Hose Type | Dual I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R3 Class D-1, SAE J1684 Type EC |
| Trunk Height | 6 |
This part fits 67 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Malibu | 3.5L | V6 | GAS | Heater To Tee | Small I.D. Heater Hose |
| 2010 | Pontiac | G6 | 3.5L | V6 | Heater To Tee | Small I.D. Heater Hose | |
| 2009 | Chevrolet | Malibu | 3.5L | V6 | GAS | Heater To Tee | Small I.D. Heater Hose |
| 2009 | Pontiac | G6 | 3.5L | V6 | Heater To Tee | Small I.D. Heater Hose | |
| 2008 | Chevrolet | Malibu | 3.5L | V6 | Heater To Tee | Small I.D. Heater Hose | |
| 2008 | Ford | Escape | 2.3L | L4 | Pipe to Engine (Inlet) | Small I.D. Heater Hose | |
| 2008 | Mazda | Tribute | 2.3L | L4 | Pipe to Engine (Inlet) | Small I.D. Heater Hose | |
| 2008 | Mercury | Mariner | 2.3L | L4 | Pipe to Engine (Inlet) | Small I.D. Heater Hose | |
| 2008 | Pontiac | G6 | 3.5L | V6 | Heater To Tee | Small I.D. Heater Hose | |
| 2008 | Saturn | Aura | 3.5L | V6 | Heater To Tee | Small I.D. Heater Hose | |
| 2007 | Chevrolet | Malibu | 3.5L | V6 | Heater To Tee | Small I.D. Heater Hose | |
| 2007 | Ford | Escape | 2.3L | L4 | GAS | Pipe to Engine (Inlet) | Small I.D. Heater Hose |
| 2007 | Mercury | Mariner | 2.3L | L4 | GAS | Pipe to Engine (Inlet) | Small I.D. Heater Hose |
| 2007 | Pontiac | G6 | 3.5L | V6 | Heater To Tee | Small I.D. Heater Hose | |
| 2007 | Saturn | Aura | 3.5L | V6 | Heater To Tee | Small I.D. Heater Hose | |
| 2002 | Mercury | Cougar | 2.0L | L4 | Pipe To Thermostat | Small I.D. Heater Hose | |
| 2001 | Mercury | Cougar | 2.0L | L4 | Pipe To Thermostat | Small I.D. Heater Hose | |
| 2000 | Ford | Contour | 2.0L | L4 | N/A | Small I.D. Heater Hose | |
| 2000 | Mercury | Cougar | 2.0L | L4 | Pipe To Thermostat | Small I.D. Heater Hose | |
| 2000 | Mercury | Mystique | 2.0L | L4 | N/A | Small I.D. Heater Hose | |
| 1999 | Ford | Contour | 2.0L | L4 | N/A | Small I.D. Heater Hose | |
| 1999 | Mercury | Cougar | 2.0L | L4 | N/A | Small I.D. Heater Hose | |
| 1999 | Mercury | Mystique | 2.0L | L4 | N/A | Small I.D. Heater Hose | |
| 1998 | Ford | Contour | 2.0L | L4 | N/A | Small I.D. Heater Hose | |
| 1998 | Mercury | Mystique | 2.0L | L4 | N/A | Small I.D. Heater Hose | |
| 1995 | Chevrolet | Camaro | 3.4L | V6 | Pipe To Water Pump | Small I.D. Heater Hose | |
| 1995 | Ford | Taurus | 3.0L | V6 | FLEX | Valve To Pipe | Small I.D. Heater Hose |
| 1995 | Ford | Taurus | 3.0L | V6 | GAS | Valve To Pipe | Small I.D. Heater Hose |
| 1995 | Pontiac | Firebird | 3.4L | V6 | Pipe To Water Pump | Small I.D. Heater Hose | |
| 1994 | Chevrolet | Camaro | 3.4L | V6 | Pipe To Water Pump | Small I.D. Heater Hose | |
| 1994 | Ford | Taurus | 3.0L | V6 | FLEX | Valve To Pipe | Small I.D. Heater Hose |
| 1994 | Ford | Taurus | 3.0L | V6 | GAS | Valve To Pipe | Small I.D. Heater Hose |
| 1994 | Pontiac | Firebird | 3.4L | V6 | Pipe To Water Pump | Small I.D. Heater Hose | |
| 1993 | Chevrolet | Camaro | 3.4L | V6 | Pipe To Water Pump | Small I.D. Heater Hose | |
| 1993 | Ford | Aerostar | 3.0L | V6 | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose | |
| 1993 | Ford | Taurus | 3.0L | V6 | Pipe To Valve | Small I.D. Heater Hose | |
| 1993 | Pontiac | Firebird | 3.4L | V6 | Pipe To Water Pump | Small I.D. Heater Hose | |
| 1992 | Ford | Aerostar | 3.0L | V6 | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose | |
| 1992 | Ford | Taurus | 3.0L | V6 | Pipe To Valve | Small I.D. Heater Hose | |
| 1991 | Ford | Aerostar | 3.0L | V6 | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose | |
| 1991 | Ford | Taurus | 3.0L | V6 | Pipe To Valve | Small I.D. Heater Hose | |
| 1990 | Ford | Aerostar | 3.0L | V6 | Heater To Pipe | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose | |
| 1990 | Ford | Escort | Heater To Pipe | w/o A.C., w/o H.D. Heat; Small I.D. Heater Hose | |||
| 1990 | Ford | Taurus | 3.0L | V6 | Pipe To Valve | Small I.D. Heater Hose | |
| 1989 | Ford | Escort | Heater To Pipe | w/o A.C., w/o H.D. Heat; Small I.D. Heater Hose | |||
| 1989 | Ford | Taurus | 3.0L | V6 | Pipe To Valve | Small I.D. Heater Hose | |
| 1988 | Ford | Escort | Heater To Pipe | w/o A.C., w/o H.D. Heat; Small I.D. Heater Hose | |||
| 1988 | Volkswagen | Cabriolet | Pipe To Valve | Small I.D. Heater Hose | |||
| 1987 | Ford | Escort | 1.9L | L4 | Heater To Pipe | w/o A.C., w/o H.D. Heat; Small I.D. Heater Hose | |
| 1987 | Mercury | Lynx | 1.9L | L4 | Heater To Pipe | w/o A.C., w/o H.D. Heat, Exc. H.O.; Small I.D. Heater Hose | |
| 1987 | Volkswagen | Cabriolet | Pipe To Valve | Small I.D. Heater Hose | |||
| 1986 | Ford | LTD | 2.3L | L4 | Pipe To Intake Manifold | Small I.D. Heater Hose | |
| 1986 | Ford | LTD | 2.3L | L4 | Heater To Intake Manifold | Fits vehicles without air conditioning.; Small I.D. Heater Hose | |
| 1986 | Ford | Mustang | 2.3L | L4 | Pipe To Intake Manifold | Small I.D. Heater Hose | |
| 1986 | Volkswagen | Cabriolet | Pipe To Valve | Small I.D. Heater Hose | |||
| 1985 | Ford | Mustang | 2.3L | L4 | Pipe To Intake Manifold | Compatible with vehicles containing air conditioning.; Small I.D. Heater Hose | |
| 1985 | Volkswagen | Cabriolet | Pipe To Valve | Small I.D. Heater Hose | |||
| 1984 | Volkswagen | Jetta | 1.7L | L4 | Heater To Valve | Small I.D. Heater Hose | |
| 1984 | Volkswagen | Jetta | 1.8L | L4 | Heater To Valve | Small I.D. Heater Hose | |
| 1984 | Volkswagen | Quantum | 1.8L | L4 | Heater To Valve | Small I.D. Heater Hose | |
| 1984 | Volkswagen | Rabbit Convertible | Heater To Valve | Small I.D. Heater Hose | |||
| 1983 | Volkswagen | Jetta | 1.7L | L4 | Heater To Valve | Small I.D. Heater Hose | |
| 1983 | Volkswagen | Rabbit Convertible | Heater To Valve | Small I.D. Heater Hose | |||
| 1982 | Volkswagen | Jetta | 1.7L | L4 | Heater To Valve | Small I.D. Heater Hose | |
| 1982 | Volkswagen | Rabbit Convertible | Heater To Valve | Small I.D. Heater Hose | |||
| 1981 | Volkswagen | Jetta | 1.7L | L4 | Heater To Valve | Small I.D. Heater Hose | |
| 1981 | Volkswagen | Rabbit Convertible | Heater To Valve | Small I.D. Heater Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.